When you think of places where the drivers are rude, impatient and likely to flash you an obscene gesture, Idaho might not be the first location that comes to mind – but according to a new poll, the state is home to the highest concentration of unpleasant motor vehicle operators in the United States.

A pivoted catch designed to fall into a notch on a ratchet wheel so as to allow movement in only one direction (e.g. on a windlass or in a clock mechanism), or alternatively to move the wheel in one direction.